Human influence on brown trout juvenile body size during metapopulation expansion
International audience Change in body size can be driven by social (density) and non-social (environmental and spatial variation) factors. In expanding metapopulations, spatial sorting by means of dispersal on the expansion front can further drive the evolution of body size. However, human intervent...
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Online Access: | https://hal.science/hal-03420470 https://hal.science/hal-03420470/document https://hal.science/hal-03420470/file/2021_AulusGiacosa_BiologyLetters.pdf https://doi.org/10.1098/rsbl.2021.0366 |
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ftunivnantes:oai:HAL:hal-03420470v1 2023-05-15T17:02:06+02:00 Human influence on brown trout juvenile body size during metapopulation expansion Aulus Giacosa, Lucie Guéraud, François Gaudin, Philippe Buoro, Mathieu Aymes, Jean-Christophe Labonne, Jacques Vignon, Matthias Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP) Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) French Polar Institute Universite de Pau et des Pays de l'Adour - E2S INRAE 2021-10-27 https://hal.science/hal-03420470 https://hal.science/hal-03420470/document https://hal.science/hal-03420470/file/2021_AulusGiacosa_BiologyLetters.pdf https://doi.org/10.1098/rsbl.2021.0366 en eng HAL CCSD Royal Society, The info:eu-repo/semantics/altIdentifier/doi/10.1098/rsbl.2021.0366 info:eu-repo/semantics/altIdentifier/pmid/34699739 hal-03420470 https://hal.science/hal-03420470 https://hal.science/hal-03420470/document https://hal.science/hal-03420470/file/2021_AulusGiacosa_BiologyLetters.pdf doi:10.1098/rsbl.2021.0366 PUBMED: 34699739 WOS: 000711138500002 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1744-9561 Biology Letters https://hal.science/hal-03420470 Biology Letters, 2021, 17 (10), ⟨10.1098/rsbl.2021.0366⟩ systems biology ecosystems dispersal density dependence brown trout subantarctic invasion biology ecology evolution [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2021 ftunivnantes https://doi.org/10.1098/rsbl.2021.0366 2023-02-22T02:42:27Z International audience Change in body size can be driven by social (density) and non-social (environmental and spatial variation) factors. In expanding metapopulations, spatial sorting by means of dispersal on the expansion front can further drive the evolution of body size. However, human intervention can dramatically affect these founder effects. Using long-term monitoring of the colonization of the remote Kerguelen islands by brown trout, a facultative anadromous salmonid, we analyse body size variation in 32 naturally founded and 10 human-introduced populations over 57 years. In naturally founded populations, we find that spatial sorting promotes slow positive changes in body size on the expansion front, then that body size decreases as populations get older and local density increases. This pattern is, however, completely different in human-introduced populations, where body size remains constant or even increases as populations get older. The present findings confirm that changes in body size can be affected by metapopulation expansion, but that human influence, even in very remote environments, can fully alter this process. Article in Journal/Newspaper Kerguelen Islands Université de Nantes: HAL-UNIV-NANTES Kerguelen Kerguelen Islands Biology Letters 17 10 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
systems biology ecosystems dispersal density dependence brown trout subantarctic invasion biology ecology evolution [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
systems biology ecosystems dispersal density dependence brown trout subantarctic invasion biology ecology evolution [SDE.BE]Environmental Sciences/Biodiversity and Ecology Aulus Giacosa, Lucie Guéraud, François Gaudin, Philippe Buoro, Mathieu Aymes, Jean-Christophe Labonne, Jacques Vignon, Matthias Human influence on brown trout juvenile body size during metapopulation expansion |
topic_facet |
systems biology ecosystems dispersal density dependence brown trout subantarctic invasion biology ecology evolution [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Change in body size can be driven by social (density) and non-social (environmental and spatial variation) factors. In expanding metapopulations, spatial sorting by means of dispersal on the expansion front can further drive the evolution of body size. However, human intervention can dramatically affect these founder effects. Using long-term monitoring of the colonization of the remote Kerguelen islands by brown trout, a facultative anadromous salmonid, we analyse body size variation in 32 naturally founded and 10 human-introduced populations over 57 years. In naturally founded populations, we find that spatial sorting promotes slow positive changes in body size on the expansion front, then that body size decreases as populations get older and local density increases. This pattern is, however, completely different in human-introduced populations, where body size remains constant or even increases as populations get older. The present findings confirm that changes in body size can be affected by metapopulation expansion, but that human influence, even in very remote environments, can fully alter this process. |
author2 |
Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP) Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) French Polar Institute Universite de Pau et des Pays de l'Adour - E2S INRAE |
format |
Article in Journal/Newspaper |
author |
Aulus Giacosa, Lucie Guéraud, François Gaudin, Philippe Buoro, Mathieu Aymes, Jean-Christophe Labonne, Jacques Vignon, Matthias |
author_facet |
Aulus Giacosa, Lucie Guéraud, François Gaudin, Philippe Buoro, Mathieu Aymes, Jean-Christophe Labonne, Jacques Vignon, Matthias |
author_sort |
Aulus Giacosa, Lucie |
title |
Human influence on brown trout juvenile body size during metapopulation expansion |
title_short |
Human influence on brown trout juvenile body size during metapopulation expansion |
title_full |
Human influence on brown trout juvenile body size during metapopulation expansion |
title_fullStr |
Human influence on brown trout juvenile body size during metapopulation expansion |
title_full_unstemmed |
Human influence on brown trout juvenile body size during metapopulation expansion |
title_sort |
human influence on brown trout juvenile body size during metapopulation expansion |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03420470 https://hal.science/hal-03420470/document https://hal.science/hal-03420470/file/2021_AulusGiacosa_BiologyLetters.pdf https://doi.org/10.1098/rsbl.2021.0366 |
geographic |
Kerguelen Kerguelen Islands |
geographic_facet |
Kerguelen Kerguelen Islands |
genre |
Kerguelen Islands |
genre_facet |
Kerguelen Islands |
op_source |
ISSN: 1744-9561 Biology Letters https://hal.science/hal-03420470 Biology Letters, 2021, 17 (10), ⟨10.1098/rsbl.2021.0366⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1098/rsbl.2021.0366 info:eu-repo/semantics/altIdentifier/pmid/34699739 hal-03420470 https://hal.science/hal-03420470 https://hal.science/hal-03420470/document https://hal.science/hal-03420470/file/2021_AulusGiacosa_BiologyLetters.pdf doi:10.1098/rsbl.2021.0366 PUBMED: 34699739 WOS: 000711138500002 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1098/rsbl.2021.0366 |
container_title |
Biology Letters |
container_volume |
17 |
container_issue |
10 |
_version_ |
1766055338416537600 |